EP 1856163 A1 20071121 - PROCESS FOR PREPARING ETHYLENE (CO) POLYMERS
Title (en)
PROCESS FOR PREPARING ETHYLENE (CO) POLYMERS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON ETHYLEN(CO)POLYMEREN
Title (fr)
PROCEDE DE PREPARATION DE (CO)POLYMERES D'ETHYLENE
Publication
Application
Priority
- EP 2006001343 W 20060215
- DE 102005007186 A 20050216
- US 66222205 P 20050315
Abstract (en)
[origin: DE102005007186A1] Preparation of olefin polymer comprises (co)polymerization of ethylene or of ethylene with up to 10 wt.%, based on the total amount of monomers, of l-olefin in suspension, in solution or in the gas phase, at 20-120[deg]C and 0.2-6 MPa in the presence of a catalyst comprising the reaction product of a magnesium alkoxide with a tetravalent transition metal compound, where a magnesium alkoxide suspended or dispersed as gel in an inert solvent, is reacted with tetravalent transition metal compound at 20-140[deg]C and the reaction product is then after-treated thermally at 90-200[deg]C for 10-180 minutes. Preparation of olefin polymer comprises (co)polymerization of ethylene or of ethylene with up to 10 wt.%, based on the total amount of monomers, of a l-olefin of formula R-CH=CH 2, in suspension, in solution or in the gas phase, at 20-120[deg]C and 0.2-6 MPa in the presence of a catalyst comprising the reaction product of a magnesium alkoxide with a tetravalent transition metal compound, where a magnesium alkoxide of formula Mg(OR 1>)(OR 2>), suspended or dispersed as gel in an inert solvent, is reacted with a tetravalent transition metal compound of formula MlX m(OR 4>) 4-m, at 20-140[deg]C and the reaction product is then after-treated thermally at 90-200[deg]C for 10-180 minutes. R : 1-12C alkyl; R 1>,R 2>1-20C alkyl radical or radical (CH 2) nOR 3>; R 3>1-4C alkyl radical; n : 2-6; M : Ti, Zr or Hf; R 4>1-9C alkyl radical; X : halo; m : 0-4. Independent claims are also included for: (1) an ethylene polymer prepared by the process; and (2) use of an ethylene polymer for producing films by film blowing process, for producing small and large hollow bodies by blow molding process and for producing pipes by extrusion process.
IPC 8 full level
C08F 4/654 (2006.01); C08F 10/02 (2006.01)
CPC (source: EP KR US)
C08F 4/64 (2013.01 - KR); C08F 10/00 (2013.01 - EP US); C08F 10/02 (2013.01 - EP KR US); C08F 110/02 (2013.01 - KR); C08F 210/02 (2013.01 - KR); C08F 110/02 (2013.01 - EP US)
Citation (search report)
See references of WO 2006087170A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 102005007186 A1 20060831; AR 055032 A1 20070801; BR PI0606925 A2 20091201; BR PI0606925 B1 20170530; CN 101120025 A 20080206; CN 101120025 B 20120718; EP 1856163 A1 20071121; EP 1856163 B1 20140528; ES 2487900 T3 20140825; JP 2008530323 A 20080807; JP 4916454 B2 20120411; KR 20070106719 A 20071105; US 2008161516 A1 20080703; US 7759445 B2 20100720; WO 2006087170 A1 20060824
DOCDB simple family (application)
DE 102005007186 A 20050216; AR P060100482 A 20060210; BR PI0606925 A 20060215; CN 200680004879 A 20060215; EP 06723041 A 20060215; EP 2006001343 W 20060215; ES 06723041 T 20060215; JP 2007555520 A 20060215; KR 20077018615 A 20070814; US 88450506 A 20060215